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Turkistani A, Nakashima S, Shimada Y, Tagami J, Sadr A. Microgaps and Demineralization Progress around Composite Restorations. J Dent Res 2015; 94:1070-7. [PMID: 26082389 DOI: 10.1177/0022034515589713] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study investigated the influence of adhesives and marginal sealing on demineralization progress using optical coherence tomography (OCT). Cavities (4 × 2 mm) were prepared in bovine incisors and restored using Clearfil SE Protect (SP), Bond Force (BF), Scotchbond Universal (SB), or G-Bond Plus (GB), followed by Estelite Flow Quick flowable composite. The control group received no adhesive (n = 10). After 3-d incubation in artificial saliva and 10,000 thermal cycles, gaps at enamel and dentin margins were measured at 8 locations on cross-sectional images obtained from each restoration using swept-source OCT at 1310-nm wavelength. Specimens were demineralized using acidified gel (pH = 4.5) for 5 wk and scanned every week to monitor the lesion progress at the same marginal locations. Repeated-measures analysis of variance showed that demineralization period and adhesive type and their interaction had a significant effect on the lesion size in both substrates (P < 0.001). SP, BF, and SB had significantly lower enamel and dentin initial gaps than the control and GB (P < 0.05). Enamel lesion progress was slower in the fluoride-releasing adhesives SP and BF and significantly different from SB, GB, and the control (P < 0.001). SP and BF dentin lesions were significantly different from GB and the control (P < 0.001), but not from SB (P > 0.05). A significant positive correlation (P < 0.05) was found between initial gap length and formed lesion size in both substrates, which was stronger in enamel (r = 0.63) than dentin (r = 0.35). Microgaps forming at the margins of restorations depend on adhesives and significantly contribute to the progress of demineralization around the margins, while fluoride release may decrease the rate of progression.
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Kashiwagura T, Kimura Y, Wakabayashi I, Ono Y, Miyamoto S, Nozaka K, Miyakoshi N, Shimada Y. AB1091 Power Doppler Ultrasonographic Assessment of Foot and Ankle Synovitis in Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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103
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Sugimura Y, Miyakoshi N, Miyamoto S, Hongo M, Kasukawa Y, Shimada Y. AB0407 Prevalence and Associated Factors of Cervical and Lumbar Spinal Instability in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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104
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Kashiwagura T, Kimura Y, Wakabayashi I, Ono Y, Miyamoto S, Nozaka K, Miyakoshi N, Shimada Y. AB1092 Assessing Forefoot Calluses in Rheumatoid Arthritis Using 3D Volume Rendering. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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105
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Sasaki Y, Harada M, Kurosaki S, Shimada Y, Hayashi M, Kamiichi H, Kawamura N, Kajiyama Y, Yao T. [A case of adenosquamous carcinoma at the esophagogastric junction, initially diagnosed as collision carcinoma]. NIHON SHOKAKIBYO GAKKAI ZASSHI = THE JAPANESE JOURNAL OF GASTRO-ENTEROLOGY 2015; 112:848-55. [PMID: 25947020 DOI: 10.11405/nisshoshi.112.848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A 47-year-old man was found to have a type 2 tumor of the esophagogastric junction on upper gastrointestinal endoscopy. Biopsy specimens revealed squamous cell carcinoma of the esophagus and adenocarcinoma of the stomach. The preoperative diagnosis was a collision carcinoma. No distant metastases were identified on computed tomography; therefore, partial esophagectomy and gastrectomy were performed. Pathological examination of the resected specimen revealed adenosquamous carcinoma at the esophagogastric junction (TNM classification: stage IIA, T3N0M0). Adenosquamous cell carcinoma of the esophagus and stomach is rare, but that at the esophagogastric junction even rarer.
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Takase K, Matsuo Y, Yanagisawa Y, Higashine K, Oda M, Manabe M, Shimada Y, Ogura R, Takahashi T, Hiasa Y. Efficacy of a home-based exercise program for recently hospitalized chronic heart failure patients. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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107
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Kambayashi J, Kosaki G, Shimada Y. Disseminated intravascular coagulation associated with severe infection in surgical patients: a retrospective and prospective study. BIBLIOTHECA HAEMATOLOGICA 2015:49-58. [PMID: 6667255 DOI: 10.1159/000408446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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108
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Takahashi Y, Sheridan P, Niida A, Sawada G, Uchi R, Mizuno H, Kurashige J, Sugimachi K, Sasaki S, Shimada Y, Hase K, Kusunoki M, Kudo S, Watanabe M, Yamada K, Sugihara K, Yamamoto H, Suzuki A, Doki Y, Miyano S, Mori M, Mimori K. The AURKA/TPX2 axis drives colon tumorigenesis cooperatively with MYC. Ann Oncol 2015; 26:935-942. [PMID: 25632068 DOI: 10.1093/annonc/mdv034] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 01/15/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The MYC oncogene has long been established as a central driver in many types of human cancers including colorectal cancer. However, the realization of MYC-targeting therapies remains elusive; as a result, synthetic lethal therapeutic approaches are alternatively being explored. A synthetic lethal therapeutic approach aims to kill MYC-driven tumors by targeting a certain co-regulator on the MYC pathway. PATIENTS AND METHODS We analyzed copy number and expression profiles from 130 colorectal cancer tumors together with publicly available datasets to identify co-regulators on the MYC pathway. Candidates were functionally tested by in vitro assays using colorectal cancer and normal fibroblast cell lines. Additionally, survival analyses were carried out on another 159 colorectal cancer patients and public datasets. RESULTS Our in silico screening identified two MYC co-regulator candidates, AURKA and TPX2, which are interacting mitotic regulators located on chromosome 20q. We found the two candidates showed frequent co-amplification with the MYC locus while expression levels of MYC and the two genes were positively correlated with those of MYC downstream target genes across multiple cancer types. In vitro, the aberrant expression of MYC, AURKA and TPX2 resulted in more aggressive anchorage-independent growth in normal fibroblast cells. Furthermore, knockdown of AURKA or TPX2, or treatment with an AURKA-specific inhibitor effectively suppressed the proliferation of MYC-expressing colorectal cancer cells. Additionally, combined high expression of MYC, AURKA and TPX2 proved to be a poor prognostic indicator of colorectal cancer patient survival. CONCLUSIONS Through bioinformatic analyses and experiments, we proposed TPX2 and AURKA as novel co-regulators on the MYC pathway. Inhibiting the AURKA/TPX2 axis would be a novel synthetic lethal therapeutic approach for MYC-driven cancers.
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Yatomi Y, Tanaka R, Shimada Y, Yamashiro K, Liu M, Mitome-Mishima Y, Miyamoto N, Ueno Y, Urabe T, Hattori N. Type 2 diabetes reduces the proliferation and survival of oligodendrocyte progenitor cells in ishchemic white matter lesions. Neuroscience 2015; 289:214-23. [PMID: 25592431 DOI: 10.1016/j.neuroscience.2014.12.054] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 12/22/2014] [Accepted: 12/30/2014] [Indexed: 01/02/2023]
Abstract
Diabetes mellitus (DM) is a major risk factor for stroke and it exacerbates tissue damage after ischemic insult. Diabetes is one of the important causes of the progression of white matter lesion, however, the pathological mechanisms remain unclear. The present study evaluated the influences of type 2 DM on ischemic subcortical white matter injury and the recruitment of oligodendrocyte progenitor cells (OPCs) under chronic cerebral hypoperfusion using type 2 diabetic (db/db) mice. After bilateral common carotid artery stenosis (BCAS), the rarefaction in the white matter was more severe in db/db mice than in db/+ mice, and the number of glutathione S-transferase-pi (GST-pi)-positive mature oligodendrocytes (OLG) was lower in db/db mice than in db/+ mice at 4 and 8 weeks after ischemia. There were no significant differences in the number of single-stranded DNA (ssDNA)-positive apoptotic cells in the deep white matter between the db/db and db/+ mice. We found a transient increase in the platelet-derived growth factor receptor-α (PDGFRα)-positive OPCs in white matter lesions after ischemia. However, significantly fewer PDGFRα-positive OPCs were detected in db/db than db/+ mice from 4weeks after BCAS. The number of Ki67-positive proliferating cells in the deep white matter was significantly lower in db/db mice than in db/+ mice from 4 to 8weeks after BCAS. Most of the Ki67-positive cells were PDGFRα-positive OPCs. Finally, we assessed the survival of 5-bromo-2'-deoxyuridine (BrdU)-positive proliferating cells in ischemic white matter, and found significantly poorer survival of BrdU/PDGFRα-positive OPCs or BrdU/GST-pi-positive OLGs in the db/db mice compared to the db/+ mice in the white matter after BCAS. Our findings suggest that the type 2 DM mice exhibited more severe white matter injury 8 weeks after chronic ischemia. Decreased proliferation and survival of OPCs may play an important role in the progression of white matter lesions after ischemia in diabetics.
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Nagahara A, Asaoka D, Hojo M, Sasaki H, Shimada Y, Matsumoto K, Ueyama H, Shibuya T, Sakamoto N, Osada T, Watanabe S. Difference in efficacy of proton pump inhibitor between new-onset and recurrent gastroesophageal reflux disease: Result from a study of on-demand versus continuous maintenance therapy in Japan. Hippokratia 2015; 19:53-56. [PMID: 26435648 PMCID: PMC4574588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND-OBJECTIVE No study has focused on the difference in efficacy of maintenance therapy between patients with new-onset and recurrent gastroesophageal reflux disease (GERD). The aim of this study is to reveal this point. METHODS Endoscopically proven GERD patients who had completed 8-week initial therapy were sequentially randomized to continuous arm (Omeprazole 20mg od) or on-demand arm (Omeprazole 20mg on-demand). Patients filled in daily symptoms and tablet usages for 24 weeks. Patients underwent upper GI endoscopy at 24 weeks. Symptom relief was defined as no symptoms for>6 days during a week. The numbers of patients who achieved symptom relief and mucosal healing were compared between the new-onset and recurrent groups in the continuous arm and in the on-demand arm, respectively. RESULTS Among new-onset GERD [n=82 (continuous: 42 patients, on-demand: 40)], continuous arm achieved significant symptom-relief than in on-demand arm at 4*,5*,6** and 17*week. Among recurrent GERD [n=36(continuous: 17 patients, on-demand: 19)], continuous arm achieved significant symptom-relief at 1**,2*,3*,4*,5**,7**,8**,17* and 18* week, respectively (*<0.05,**<0.01). The number of healed patients was significantly higher in new-onset group (60/68, 88.2%) than in recurrent group (17/30, 56.7%) (<0.01). CONCLUSION Since therapeutic response during maintenance therapy was poor in recurrent GERD, continuous therapy is recommended in order to maintain symptom-relief and mucosal healing. Hippokratia 2015, 19 (1): 53-56.
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Shimada Y, Hayashi J, Aramaki O, Wada I, Sadr A, Sumi Y, Tagami J. 3D assessment of dental caries using swept-source optical coherence tomography. Dent Mater 2015. [DOI: 10.1016/j.dental.2015.08.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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112
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Shimada Y, Yamamoto K, Fukushima S, Kumagai T. Evaluation of wear resistance of coating materials on GI restorative. Dent Mater 2015. [DOI: 10.1016/j.dental.2015.08.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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113
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Nagashima K, Iwasa S, Yanai T, Hashimoto H, Suzuki K, Ohyanagi F, Shimada Y, Yamamoto N. A double-blind randomized Phase II study of olanzapine 10 mg versus 5 mg for emesis induced by highly emetogenic chemotherapy. Jpn J Clin Oncol 2014; 45:229-31. [DOI: 10.1093/jjco/hyu191] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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114
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Shimada Y, Yoshida K, Kato Y, Hagiwara M, Kakihana M, Kajiwara N, Ohira T, Ikeda N. 080 * SURGICAL RESULTS OF LUNG CANCER WITH SYNCHRONOUS MULTIPLE GROUND-GLASS OPACITIES AND THE MANAGEMENT OF THE RESIDUAL AND NEW LESIONS. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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115
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Shimada Y, Tanaka R, Shimura H, Yamashiro K, Urabe T, Hattori N. Phosphorylation enhances recombinant HSP27 neuroprotection against focal cerebral ischemia in mice. Neuroscience 2014; 278:113-21. [DOI: 10.1016/j.neuroscience.2014.07.073] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/18/2014] [Accepted: 07/31/2014] [Indexed: 11/29/2022]
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Endo Y, Shoji N, Shimada Y, Kasahara E, Iikubo M, Sato T, Sasano T, Ichikawa H. Prednisolone induces microglial activation in the subnucleus caudalis of the rat trigeminal sensory complex. Cell Mol Neurobiol 2014; 34:95-100. [PMID: 24077857 DOI: 10.1007/s10571-013-9990-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 09/17/2013] [Indexed: 12/20/2022]
Abstract
Prednisolone is a member of synthetic glucocorticoids which are widely used to treat chronic inflammatory diseases. In this study, neuronal degeneration and cell death, and glial reaction were investigated in the rat trigeminal ganglion (TG) and brainstem after subcutaneous injection of prednisolone for 7 days. Expression of c-Jun activating transcription factor 3 and caspase-3 was absent or infrequent in the TG, and cranial sensory and motor nuclei of saline- and prednisolone-treated animals. In these animals, distribution of calcitonin gene-related peptide-immunoreactive (-IR) neurons and nerve fibers was similar in the brainstem. In addition, the number of Iba1- and glial fibrillary acidic protein (GFAP)-IR cells with some processes in the brainstem was barely affected by prednisolone treatment. However, the treatment increased ramification of Iba1-IR processes in the subnucleus caudalis of the trigeminal sensory complex. Prednisolone scarcely influenced the morphology of GFAP-IR cells in the brainstem. Expression of p38 mitogen-activated protein kinase was very rare in the brainstem of saline- and prednisolone-treated animals. The present study suggests that microglia are activated by prednisolone in the subnucleus caudalis of the trigeminal sensory complex. The glucocorticoid may affect nociceptive transmission in the brainstem.
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Van Cutsem E, Ohtsu A, Falcone A, Yoshino T, Garcia-Carbonero R, Mizunuma N, Yamazaki K, Shimada Y, Tabernero J, Komatsu Y, Sobrero A, Boucher E, Peeters M, Tran B, Lenz H, Zaniboni A, Hochster H, Aivado M, Makris L, Mayer R. Phase III Recourse Trial of Tas-102 Vs. Placebo, with Best Supportive Care (Bsc), in Patients (Pts) with Metastatic Colorectal Cancer (Mcrc) Refractory to Standard Therapies. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu438.11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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118
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Araki T, Hamaguchi T, Takashima A, Honma Y, Iwasa S, Okita N, Kato K, Yamada Y, Hashimoto H, Taniguchi H, Kushima R, Nakao K, Shimada Y. Amrubicin Monotherapy in Patients with Platinum-Refractory Metastatic Neuroendocrine Carcinoma and Mixed Adenoneuroendocrine Carcinoma of the Gastrointestinal Tract. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu345.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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119
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Shimada Y, Nishimura M, Imaoka T, Daino K, Yamada Y, Ariyoshi K, Tsuruoka C, Kakinuma S. 578: Critical age windows of radiation exposure for cancer risk in experimental animal models. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50513-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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120
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Takabatake M, Daino K, Imaoka T, Nishimura M, Fukushi M, Shimada Y. 570: Global DNA methylation profiling identifies epigenetic differences between spontaneous and radiation-induced rat mammary carcinomas. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50505-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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121
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Al-Batran S, Van Cutsem E, Oh Sang C, Bodoky G, Shimada Y, Hironaka S, Sugimoto N, Lipatov O, Kim T, Cunningham D, Rougier P, Muro K, Liepa A, Ballal S, Emig M, Ohtsu A, Wilke H. Rainbow: Global, Phase 3, Randomized, Double-Blind Study of Ramucirumab Plus Paclitaxel vs Placebo Plus Paclitaxel Patients with Previously Treated Gastric or Gastroesophageal Junction Adenocarcinoma – Patient-Reported Outcomes and Performance Status. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu193.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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122
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Yoshino T, Mayer R, Falcone A, Ohtsu A, Garcia-Carbonero R, Mizunuma N, Yamazaki K, Shimada Y, Tabernero J, Komatsu Y, Sobrero A, Boucher E, Peeters M, Tran B, Lenz H, Zaniboni A, Hochster H, Benedetti F, Aivado M, Makris L, Ito M, Van Cutsem E. Results of a Multicenter, Randomized, Double-Blind, Phase III Study of TAS-102 vs. Placebo, with Best Supportive Care (BSC), in Patients (PTS) with Metastatic Colorectal Cancer (MCRC) Refractory to Standard Therapies (RECOURSE). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu193.22] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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123
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Sugimura Y, Miyakoshi N, Miyamoto S, Hongo M, Kasukawa Y, Shimada Y. FRI0108 Correlation between Cervical and Lumbar Spinal Instability in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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124
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Sasaki Y, Hamaguchi T, Shoji H, Okita N, Takashima A, Honma Y, Iwasa S, Kato K, Yamada Y, Shimada Y. Value of KRAS, BRAF and PIK3CA Mutations and Benefits from Systemic Chemotherapy in Colorectal Peritoneal Carcinomatosis. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu164.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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125
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Shimada Y, Hagiwara M, Kato Y, Maeda J, Kakihana M, Kajiwara N, Ohira T, Ikeda N. F-036 * HIGH-QUALITY THREE-DIMENSIONAL IMAGE SIMULATION FOR THORACOSCOPIC ANATOMICAL LUNG RESECTION: RESULTS OF PREOPERATIVE ASSESSMENT OF PULMONARY VESSELS AND SHORT-TERM SURGICAL OUTCOMES IN 125 CONSECUTIVE CASES. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu167.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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